Capacity Planning in the Face of Product-Mix Uncertainty

The question is to what extent do these tool groups

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Unformatted text preview: oups that could become capacity constraints if product mix shifts certain ways. The question is, to what extent do these tool groups pose a risk of constraining capacity? With multiple products loading each tool group at varying rates, the range of possible product mixes that could overload a tool is overwhelming. This is what makes difficult the question: “How can additional tool purchases be used to reduce the risk of mix-driven capacity shortfall?” This question is answered below. Step 3. Quantifying the Sensitivity of Production Capacity to Product Mix For each tool group that survived the above screening and remains as a mix-driven capacity constraint, capacity loading per wafer is calculated for the tool group’s heaviest- and lightest-loading products. This is accomplished as follows: 1. For each mix-driven capacity-constraining tool group, identify the single product that most heavily loads that tool group. Then identify the single product that most lightly loads that tool group....
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This note was uploaded on 04/11/2011 for the course ECE 357 taught by Professor Subjolly during the Spring '11 term at National University of Ireland, Galway.

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